package backpage.control;
import com.model.User;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import backpage.model.DeleteHandler;

public class onDeleteItems extends HttpServlet {
	private static final long serialVersionUID = -3031835381699174212L;

	/**
	 * Constructor of the object.
	 */
	public onDeleteItems() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	@SuppressWarnings("deprecation")
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		User user = (User) request.getSession().getAttribute("userInfo");
		if (user == null || !user.getState().equals("teacher")){
			response.sendRedirect("backPage/jsp/login.jsp");
			return;
		}
		
		String[] checkValues = request.getParameterValues("itemCheckBox");
		
		String webRoot = request.getRealPath("/");
		webRoot = webRoot.substring( 0, webRoot.length() - 1 );
		DeleteHandler.instance.deleteItems(checkValues, webRoot);
		
		response.sendRedirect("backPage/index.jsp?resType="+request.getParameter("resType"));		
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doGet(request, response);
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
